未知题型 The project maintains a current and approved set of requirements over the life of the project by doing the following: .(73)all changes to the requirements . Maintaining the relationships among the requirements, the project plans, and the work products . ……A.MonitoringB.ManagingC.GatheringD.Reducing

多项选择题 科学精神表现为() A. 怀疑精神 B. 求真精神 C. 创新精神 D. 务实精神

单项选择题 Waves that travel very long distances are called ( )